APA (7th ed.) Citation

Prelutsky, J., & Stevenson, J. (1990). Something big has been here. Greenwillow Books.

Chicago Style (17th ed.) Citation

Prelutsky, Jack, and James Stevenson. Something Big Has Been Here. New York: Greenwillow Books, 1990.

MLA (9th ed.) Citation

Prelutsky, Jack, and James Stevenson. Something Big Has Been Here. Greenwillow Books, 1990.